Sensory test for shelf-life

Shelf-life Experiment

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Experiment questionnaire:

Soy yogurt drink with kiwi flavour
Shelf life experiment
Assessor name:

Instructions
Smell the samples and write an answer to the following question:
---------------“Would you normally consume this product?”
Write -------‘YES’ or ‘NO’.

Assessor	Sample	0 d	2 d	4 d	7d	9 d	11d	14 d	16 d	18 d
	A
	C

A = our product
C= commercial product (multifruit flavour brand 'ACTIMEL')

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Experiment result:
1) pH value

pH Measurements
Sample	0 days	2 days	4 days	7 days	9 days	11 days	14 days	16 days	18 days
A	4.15	4.22	4.20	4.19	4.20	4.20	4.23	4.17	4.16
C	4.01	4.05	4.00	3.98	3.99	4.00	4.04	3.98	3.95

2) sensory test result

Sensory test results
Assessor	Sample	0 d	2 d	4 d	7d	9 d	11d	14 d	16 d	18 d
1	A	YES	YES	YES	YES	YES	YES	YES	NO	NO
	C	YES	YES	YES	NO	YES	NO	NO	NO	YES
2	A	YES	YES	YES	YES	YES	YES	YES	YES	YES
	C	YES	YES	NO	NO	NO	NO	NO	NO	NO
3	A	YES	YES	YES	YES	YES	YES	YES	YES	NO
	C	YES	YES	YES	YES	YES	YES	YES	YES	YES
4	A	YES	YES	YES	YES	YES	NO	NO	NO	NO
	C	YES	YES	YES	NO	NO	NO	NO	NO	NO
5	A	YES	YES	YES	YES	YES	NO	NO	NO	NO
	C	YES	YES	YES	YES	YES	YES	YES	NO	NO
6	A	YES	YES	YES	YES	YES	YES	YES	YES	NO
	C	YES	YES	YES	YES	YES	YES	YES	NO	NO
7	A	YES	YES	YES	YES	YES	YES	YES	NO	NO
	C	YES	YES	YES	YES	YES	YES	YES	NO	YES
8	A	YES	YES	YES	YES	YES	YES	YES	NO	NO
	C	YES	YES	YES	YES	YES	YES	YES	NO	NO
9	A	YES	YES	YES	YES	YES	YES	YES	NO	NO
	C	YES	YES	YES	YES	YES	YES	YES	YES	YES
10	A	YES	YES	YES	YES	YES	YES	YES	YES	NO
	C	YES	YES	YES	YES	YES	YES	YES	NO	NO
11	A	YES	YES	YES	YES	YES	NO	NO	NO	NO
	C	YES	YES	YES	YES	YES	NO	NO	NO	NO
12	A	YES	YES	YES	YES	YES	NO	NO	NO	NO
	C	YES	YES	YES	YES	YES	NO	NO	NO	NO
13	A	YES	YES	YES	YES	YES	NO	NO	NO	NO
	C	YES	YES	YES	YES	YES	NO	NO	NO	NO
14	A	YES	YES	YES	YES	YES	YES	YES	YES	NO
	C	YES	YES	YES	YES	YES	NO	NO	NO	NO

R script for sensory test analysis











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